4Runner is a Toyota model introduced in 1984. Over the decades, the model has been gone thought a lot of changes and it’s currently in its fifth generation that debuted in 2009. The mid-size Sports utility vehicle (SUV) is currently available with 4 doors and a 4.0l engine. The previous generations had a wider engine options, and the fifth one actually offered a 2.7l engine along with the 4.0l, but it was discontinued. more